Dry kiln



June 9, 1925.

F. M. CREIGHTON DRY KILN Filed April '12, 1924 Patented June 9, 1925.

UNITED STATES PATENT OFFICE.-

FRANK M. ennreiaron, or AMnnIcUs, GEORGIA, Assrenon To MOORE DRY KILN eo.,

or JACKSONVILLE, FLORIDA, A CORPORATION or FLORIDA.

DRY KILN.

Application filed April 12, 1924. Serial No. 706,180.

To all whom. t may concern:

Be it known that T, FRANK M. CREIGI-I- TON, a citizen of the United States, residing at Amerieus, in the county of Sumter and State of Georgia, have invented certain new and useful Improvements in Dry Kilns, of which the following is a specilication.

My invention relates to an improvement in dry kilns.

The present invention deals more particularly with means fon regulating and tempering the air in the kiln.

This invention includes means for spraying in the general direction of the air movement, and means for regulating and controlling the inflowing supply of the air to the kiln.

This invention further consists in vertical sprays in or near the side walls of the kiln, also a horizontal spray for spraying in the general direction of the air movement in connection with an air inlet regulator, and means for heating the air.

In the accompanying drawings :M

Fig. l is a longitudinal vertical section; and

Fig. 2 is a horizontal section through a diagrammatic form of kiln with parts broken away.

A., represents what might be termed a diagrammatic typical form of dry kiln, but divested of details; and the numeral l illustrates heating-coils located in this instance at the right-hand end of the kiln.

There is an air inlet regulating` shut-ter or register at the end of the kiln, section '.3 of which is movable up and down in any approved manner and by any approved means upon the. end of the kiln, and these parts and El are provided with slots i and 5 respectively, which may be entirely closed or the size of which may be regulated and controlled by the positionor elevation of the movable shutter 2, which may he raised or lowered in any approved manner across the end of the kiln. y

The slots 4 are preferably relatively narrower than slots 5, thus making the intervening slats correspondingly wider and narrower in the two lower sets of sections 2 and 3. This is a preferred but not necessary eonstruction for regulating the supply and inflow of air into the endof the kiln.

Vertical sprays 8 are located in recesses 6 in the side walls and their jets are arranged to spray forwardly in the direction of air travel as illustrated.

A similar spray 7 extends horizontally and discharges in the same forward direction, namely the direction of the movement of the air. This horizontal spray is preferably located adjacent to the air inlet regulating shutter or register, and desirably loetween it and the heating-coils 1. 1

To reiterate, it will be noted that there are vertical sprays on the opposite side walls and a horizontal spray located at the end next to the regulating shutter or register, all of which spray in the same general direction of air movement which has been fed into the kiln through the regulating shutter or register. VIn this way, the shutter and the sprays act in conjunction to regulate and temper lheair fed or drawn into the kiln.

I claim:

l.. The combination of a kiln, means for heating the same, vertical sprays in the opposite side walls. a horizontal spray, said sprays all discharging in the general direction of air movement, and an air inlet regulating` shutter or register adjacent to which the iorizontal spray is located.

2. The combination of a kiln, heating coils therein, an air inlet regulating shutter or register at one end thereof, a horizontal spray adjacent thereto, and if'ertical sprays in opposite side walls of the kiln, all of which sprays discharge in the general direction of the air movement.

2E. The combination of a kiln, heating means therein, an air inlet regulating shutter or register at one end thereof, wall sprays and a spray adjacent to the inlet end, said sprays all discharging in the general direction of the air movement in the kiln.

4. VThe combination of a kiln, heating means therein, said kiln having an air inlet, wall sprays, and a spray adjacent said air inlet, said sprays discharging in the general direction of the air movement in the kiln.

In testimony whereof I affix my signature.

FRANK M. CREIGHTON. 

